A transatlantic flight optimized from start to
finish to reduce noise and emission levels was operated on
Tuesday. The flight, which departed Paris-Charles de Gaulle at
11:15 and touched down in Miami at 14:45 local time is known as a
“green flight” and was operated with an Air France Boeing
The flight was the result of cooperation between
Aéroports de Paris, the French DGAC civil aviation authority,
NATS, NAV Portugal, the US Federal Aviation Administration (FAA),
SESAR Joint Undertaking, and Air France.
During the 9 hour and 30-minute flight,
procedures were activated to improve the aircraft’s energy
efficiency. These optimized procedures, applied at each flight
stage and coordinated among all project participants, reduced fuel
consumption (and hence carbon dioxide emissions) throughout the
flight, from taxiing at Paris-Charles de Gaulle to arrival on the
parking stand in Miami.
The coordinated application of these procedures
during the flight cut CO2 emissions by 6-9 metric tons and saved
2-3 metric tons of jetfuel.
Some of the procedures used include:
- Shorter taxiing times, coordinated with
Aéroports de Paris at Paris-Charles de Gaulle and with the FAA at
- Continuous climb, coordinated with DSNA, the
DGAC’s air traffic control authority;
- During the cruise phase, optimum altitude and
speed were constantly selected to cut fuel consumption in
conjunction with en route air traffic control centres in France
(DSNA), the UK (NATS), Portugal (NAV Portugal) and the US (FAA);
- Continuous descent, coordinated by US air
traffic control (FAA).
During the departure and arrival phases, the
procedures used also helped minimize noise levels by up to 7dB (a
reduction of 3dB is the equivalent of halving noise levels).
When these optimizations are applicable to all
Air France long-haul flights to and from North America, CO2
emissions will be cut by 135,000 metric tons per year, with fuel
savings of 43,000 metric tons.
This transatlantic green flight, fully optimized
from start to finish, was flown as part of the AIRE (Atlantic
Interoperability Initiative to Reduce Emissions) programme, a
joint initiative between the European Commission and the FAA and
run by SESAR-JU at the European end.
In the framework of this initiative, airlines,
air traffic management service providers, aircraft manufacturers
and airports are all being encouraged to make the most of current
technological advances in the fields of avionics and optimize
their flight operations. The flights will be used to endorse
technical solutions delivering lower CO2 emissions.
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